Bryan Beaudreault created HBASE-28400:
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Summary: WAL readers treat any exception as EOFException, which
can lead to data loss
Key: HBASE-28400
URL: https://issues.apache.org/jira/browse/HBASE-28400
Project: HBase
Issue Type: Bug
Reporter: Bryan Beaudreault
In HBASE-28390, I found a bug in our WAL compression which manifests as an
IllegalArgumentException or ArrayIndexOutOfBoundException. Even worse is that
ProtobufLogReader.readNext catches any Exception and rethrows it as an
EOFException. EOFException gets handled in a variety of ways by the readers of
WALs, and not all of them make sense for an exception that isn't really EOF.
For example, WALInputFormat catches EOFException and returns false for
nextKeyValue(), effectively skipping the rest of the WAL file but not failing
the job.
ReplicationSourceWALReader has some much more complicated handling of
EOFException.
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